# Dr. Alwin Simon — alwinsimon.com

> Personal site of Dr. Alwin Simon: from a medical field by education, a technology & business enthusiast by blood and brain. Consultant for digital transformation, AI adoption and automation — bridging healthcare, software and business.

## What this site is

- Single-page portfolio and free public toolkit. No login, no tracking of tool inputs; all utilities run entirely in the visitor's browser.
- Sections: About, What I do (digital transformation, AI & automation, health-tech, build & scale), The Toolkit, Contact (email revealed via an interactive circuit puzzle to deter scrapers).

## The Toolkit (free in-browser utilities)

- Time: world clocks, every IANA timezone (full Australian set incl. Eucla, Lord Howe, Broken Hill), timezone converter, date difference, day-of-week.
- Network: real speed test against Cloudflare endpoints — download, upload, latency, jitter, packet loss, bufferbloat, stability, packet-route view, server log, stress presets (5–30 min), PNG/Markdown reports; standalone mode when providers are unreachable.
- Business analyzer: retailer pricing workbench — purchase rate, wholesaler discount, GST (CGST/SGST/IGST), free quantity, MRP, selling rate, profit, break-even, warnings, charts, shareable links.
- Profit & tax: net-profit-after-tax explainer with plain-words verdict.
- Units: length, mass, temperature, data (decimal & binary), speed, area, volume, time.
- Case converter: rich-text-preserving case changes with clipboard support.
- Calculator: safe expression parser (no eval), DEG/RAD trig, history.
- Health numbers: BMI (WHO + Asian-Indian cutoffs), BMR/TDEE, blood sugar interpreter (ADA ranges, HbA1c ↔ eAG), blood pressure categories (ACC/AHA 2017), heart-rate zones (Tanaka/Karvonen), sleep cycles, daily water guide. Educational reference ranges only — not medical advice.

## Contact

- Email: revealed on-page after a human-verification puzzle (connectalwin at gmail dot com).
- LinkedIn: https://www.linkedin.com/in/alwinsimon
- GitHub: https://github.com/alwinsimon
- Blog: https://blog.alwinsimon.com